How to master the difference of bearing models

The basic code indicates the basic type, structure and size of the bearing. It is the basis of the bearing code. The front and rear codes are the supplementary codes added around the basic code when the structural shape, size, tolerance and technical requirements of the bearing are changed.

Except for the needle roller bearing, the basic code consists of bearing type code, size series code and inner diameter code

Type code:

0 double row angular contact ball bearing

1 self aligning ball bearing

2 self aligning roller bearing and thrust self-aligning roller bearing

3 tapered roller bearing

4 double row deep groove ball bearing

5 thrust ball bearing

6 deep groove ball bearing

7 angle contact ball bearing

8 thrust cylindrical roller bearing

N cylindrical roller bearing

Double or multiple columns are represented by the letter NN

U outer spherical bearing

QJ four point contact ball bearing